"The Secret Adversary" is a mystery novel by Agatha Christie, first published in 1922. It introduces the characters of Tommy and Tuppence, a pair of clever, adventurous young people who form a partnership, calling themselves "Young Adventurers Ltd." The story is set in post-World War I Britain, where economic hardship and political unrest are prevalent.The plot revolves around a missing woman named Jane Finn, who was entrusted with sensitive government documents but disappeared five years earlier. Tommy and Tuppence, in need of money and excitement, embark on a quest to find Jane Finn and...